Be Amazing Toys Totally Tubular

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Here’s the challenge… How many breaths would it take to blow up a 2 meter (8 ft) long bag? Depending on the size of the person, it may take anywhere from 10 to 50 breaths of air. However, ￼￼￼￼￼￼￼￼￼￼￼with a little practice… and some scientific knowledge of air… you will be able to inflate the bag using only one breath!